Senior Full Stack Engineer

StructureIt is a growing software consultancy in the capital markets, with offices in the UK, South Africa, Mauritius, India and New Zealand. We are trusted partners that help our customers in the Commercial Real Estate and Credit Markets leverage technology to unlock value throughout their business. Our mission is to deliver high-quality and robust software that quickly solves customer pain points while keeping them in control throughout the engagement.

Main focus of the role

We are looking for a self-starting Senior Full Stack Engineer with deep experience in C# and .NET, and in Angular or React. You lead the design and delivery of complex systems and features, and you set the technical approach that other engineers build on. The role is client-facing. You take a client requirement and turn it into software that is secure, maintainable and fit for the business it serves.

The role is based in South Africa, in Johannesburg, Cape Town or remote. You will report to a Technical People Lead and work with distributed teams in London, New Zealand, India and the US. Expect to work on more than one engagement, and expect the mix to change as our client work changes.

You will also use AI every day. Our engineers use AI coding tools such as Claude Code to design, write, test and review code. We work within an approved toolset, and you stay accountable for every line that carries your name. We expect you to arrive able to do this well, to review AI-generated code at least as hard as your own, and to know when human judgement must lead.

What you’ll do

The work falls into five areas. The first three take most of your time.

Design the system

Lead the design of complex systems and features, and define the technical approach for the team

Select and justify the tools, languages and frameworks for each project

Design systems with clear boundaries, consistent patterns and good documentation, so that people and AI tools can extend them safely

Lead schema and data model design, and choose the database technology that fits the problem

Document architecture for technical and non-technical readers

Build across the stack

Lead service-oriented backend design in C# and .NET, including API versioning, distributed systems patterns and secure-by-design architecture

Architect complex front ends in Angular or React, and hold the team to accessibility and performance standards

Use AI tools to design, write, test and review code, and treat prompt design as a core technical skill

Review AI-assisted code for maintainability, security, architectural fit and domain accuracy, and challenge output you do not fully understand

Lead the migration of legacy applications to modern technologies and infrastructure

Ship it safely

Design and maintain CI/CD pipelines with quality gates, contract testing and rollout strategies such as feature flags and blue-green deployment

Define test strategies across components, so that automated tests stay reliable, fast and meaningful

Design cloud infrastructure that is secure, scalable, compliant and cost-effective

Define SLOs and SLIs, and use distributed tracing and telemetry to diagnose system-wide issues

Work with the client

Lead technical conversations with clients and stakeholders, and explain trade-offs at the right level of detail

Work with analysts, product owners and project managers to shape scope and delivery phases based on technical feasibility

Break complex problems into small, well-defined tickets with clear outcomes, dependencies and decision context

Know when to move fast with AI and when to slow down for critical logic, security, compliance or domain-sensitive work

Help others grow

Mentor engineers across experience levels through pairing, code review and feedback they can act on

Coach others on safe and effective AI use, including prompt quality, output validation and debugging AI-assisted code

Help define and enforce team standards for AI use, covering review, documentation, traceability and quality thresholds

Add reusable prompts, workflows and patterns to our Skills Library, so that knowledge does not sit with one person

To fly in your role, you’ll need

A minimum of seven years working experience as a software engineer

Extensive commercial experience in C# and .NET

Production experience with Angular or React

At least one system you designed, shipped and supported in production, that you can talk through in detail at interview

Experience in client-facing delivery, where the client sets the priorities and you explain the trade-offs

Hands-on experience with at least one major cloud platform, and with Linux, containers and infrastructure as code

Excellent written and spoken communication

Comfortable in an Agile delivery team

The discipline to manage your own time and stay in close contact with a team spread across time zones

Daily working experience with an AI coding tool such as Claude Code, and examples of where it helped you and where it was wrong

Willingness to work in an agentic delivery model, where parts of the development workflow are automated

Experience in financial services is a strong advantage, and Commercial Real Estate or Credit Markets experience even more so

The confidence to tell a client something they do not want to hear, early

We assess candidates against our Senior Developer role expectations. These cover software development, the delivery lifecycle, code quality and testing, databases, DevOps and deployment, initiative and accountability, communication and collaboration, and leadership and mentorship. Our full stack expectations add frontend and backend engineering, integration and quality, and system thinking.

Benefits

Working

Fully remote working / or from the office with daily lunch

Flexible working hours

High-spec Dell laptop

Money towards a keyboard of your choice, that is yours to keep

WFH Financial Assistance of up to R10,000 for office-related purchases, repayable over 6 months

Insurance - fully paid on top of, not out of your salary

Discovery Classic Saver medical aid with Vitality, plus Stratum Gap Cover, for you, your partner and up to three children

Life cover through Simply at two times your annual salary

Occupational disability cover at one times your annual salary

Family funeral cover of R40,000

Pay

Market rate or above as a base salary, with the other benefits listed here over and above it

A 13th cheque at your annual review when you are performing, and a multiple of it when you are performing above expectation

Salary increases tracked to published inflation for your country of work

A referral bonus when someone you introduce joins and passes probation

Learning

A training budget for the courses and books that move you forward, funded on approval by your lead

Company-provided access to frontier AI tooling, and time to learn it

Culture

Employee-first culture that encourages work/life balance

Everyone has a voice, regardless of title

Psychological safety

Annual company outings

Leave

20 days annual leave

Three months paid maternity leave after six months’ service, and six months after eighteen months’ service

Two days a year to attend conferences, and paid leave for the days you spend presenting at one

Ten days paid parental leave for partners, fathers and adoptive parents

Five days study leave, three days family responsibility leave, one moving day and one volunteer day each year

Long-Term Loyalty Benefits

2 years - a monthly company-paid benefit of your choice: phone contract, Uber vouchers, retirement annuity contribution or petrol spend

3 years - apply for a bursary to study further in your field

5 years - 3 additional days annual leave, every year from then on

7 years - A company-paid weekend getaway for you and your partner or family, plus an additional Friday or Monday